Box-type substation ups remote start-stop device and control method
Patent Information
- Application Number
- CN202611253398.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-18
- Publication Date
- 2026-11-03
AI Technical Summary
In existing technologies, the start-up and shutdown operations of UPS in prefabricated substations require maintenance personnel to manually operate them on-site one by one, resulting in high labor and time costs and slow response. In particular, it is difficult to guarantee timeliness and safety when the power grid is abnormal. Furthermore, modifying the internal control circuit of the UPS may affect the safety and warranty of the equipment.
A remote start/stop device for a box-type substation UPS was designed, including a power supply unit, an in-station fiber optic switch control unit, and an electromagnetic pressing execution unit. It is fixed to the outside of the UPS chassis by an external mounting bracket. Remote control is achieved by pressing the buttons on the UPS panel with an electromagnet, avoiding modification of the internal structure of the UPS.
It enables remote start-stop control of UPS equipment, improves operational efficiency, preserves the structural and functional integrity of UPS equipment, is highly adaptable, and is suitable for widely distributed transformer substation scenarios.
Smart Images
Figure CN123034632A_ABST
Abstract
Description
Technical Field
[0001] This document relates to the field of remote control technology for power equipment, and in particular to a remote start / stop device and control method for a prefabricated substation UPS. Background Technology
[0002] A prefabricated substation (or simply prefabricated substation) is a compact, integrated power distribution system that combines high-voltage switchgear, distribution transformers, and low-voltage distribution equipment according to a specific wiring scheme. It is widely used in photovoltaic power plants, wind farms, and urban power distribution networks. A UPS (Uninterruptible Power Supply) is a crucial emergency power supply device within a prefabricated substation, providing uninterrupted power to critical loads during grid fluctuations or power outages.
[0003] When a power collection line experiences a prolonged power outage, the high-voltage side of the prefabricated substation may be without sufficient power to sustain the UPS until the power restoration process is completed, preventing communication equipment from maintaining normal operation for an extended period. Currently, starting and stopping UPS systems in prefabricated substations primarily relies on maintenance personnel manually pressing the power-on or power-off buttons on the UPS panel on-site. Since prefabricated substations in photovoltaic power plants, wind farms, and similar settings are often widely distributed and geographically remote, when starting or stopping UPS systems in multiple prefabricated substations requires maintenance personnel to visit each substation individually. This not only consumes significant manpower, vehicle, and time resources but also hinders rapid response during grid anomalies. Especially at night, in inclement weather, or when transportation is difficult, the timeliness and safety of on-site operations are compromised. Directly modifying the internal control circuitry of a UPS could affect its original safety, warranty, and subsequent maintenance. Therefore, how to achieve remote start-stop control of existing UPS equipment without making any modifications to its internal structure and wiring has become a pressing technical problem in this field. Summary of the Invention
[0004] This specification provides one or more embodiments of a remote start / stop device for a prefabricated substation UPS, comprising: The power supply unit is used to draw power from the DC power supply of the prefabricated substation and output the working voltage after voltage regulation. The fiber optic switch control unit in the station is electrically connected to the power supply unit and is used to receive start / stop switch control signals from the main control terminal and output switch control commands according to the control signals. An electromagnetic pressing actuator, electrically connected to the fiber optic switch control unit in the station, includes an electromagnet. The push rod of the electromagnet is positioned toward the button on the UPS panel and is used to drive the push rod to extend and press the button after receiving the switch control command. An external mounting bracket is used to fix the electromagnetic pressing actuator to the outside of the UPS chassis.
[0005] Furthermore, the power supply unit includes a wide-voltage regulator module. The input end of the wide-voltage regulator module is used to connect to the DC power supply of the box-type substation or the existing DC power supply of the box-type substation, and the output end is used to provide a stable operating voltage to the fiber optic switch control unit and the electromagnetic pressing execution unit in the station.
[0006] Furthermore, the in-station fiber optic switch control unit includes a single-fiber cascaded switch and a switch output module. The single-fiber cascaded switch receives switch signals from the main control terminal through a single optical fiber, and the switch output module controls the on / off state of the relay according to the switch signals.
[0007] Furthermore, the electromagnet is a through-push-pull type electromagnet, in which the push rod extends when energized and resets when de-energized.
[0008] Furthermore, the external mounting bracket is a metal bracket that is fixed to the UPS chassis or an adjacent mounting location by screws, clips, or clamps.
[0009] Furthermore, the external mounting bracket is provided with a position adjustment structure for adjusting the installation position of the electromagnet and the distance between the push rod and the button.
[0010] Furthermore, the position adjustment structure includes an elongated hole, a sliding groove, or an adjustable mounting groove, used to adjust the lateral and longitudinal positions of the electromagnet and the distance between it and the button.
[0011] Furthermore, the main control terminal is a switch output device used to output UPS power-on or power-off control signals.
[0012] Furthermore, the in-station fiber optic switch control unit includes a wireless 4G switch, which is used to receive start / stop switch control signals from the main control terminal wirelessly.
[0013] This specification provides one or more embodiments of a remote start / stop control method for a prefabricated substation UPS, used in the aforementioned remote start / stop device for a prefabricated substation UPS, comprising: The main control terminal outputs UPS start / stop switch control signals. The control signal is received by the fiber optic switch control unit in the station, and a switch control command is output according to the control signal and sent to the electromagnetic pressing execution unit. When the electromagnetic pressing actuator receives the switch control command, it drives the push rod of the electromagnet to extend and press the button on the UPS panel; After the pressing is completed, the relay is disconnected, the electromagnet is de-energized, and the push rod is reset, realizing the remote start and stop of the UPS of the box-type substation.
[0014] Using the embodiments of the present invention, the external buttons on the UPS panel are pressed by physical means. The entire process does not involve any internal control circuits of the UPS, does not cut or modify any internal wiring of the UPS, and does not make any destructive modifications to the UPS chassis. While realizing remote control, the original structure and functional integrity of the UPS equipment are completely preserved. Compared with on-site operation, maintenance personnel can remotely control the start and stop of one or more transformer UPS units through the main control terminal, which greatly improves the efficiency of operation and has strong compatibility and adaptability to existing UPS equipment.
[0015] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in one or more embodiments of this specification or in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram illustrating the composition of a remote start / stop device for a prefabricated substation UPS, provided for one or more embodiments of this specification; Figure 2 This is a flowchart illustrating a remote start / stop control method for a prefabricated substation UPS, provided for one or more embodiments of this specification. Detailed Implementation
[0018] To enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this document.
[0019] Device Examples According to an embodiment of the present invention, a remote start / stop device for a prefabricated substation UPS is provided. Figure 1 This specification provides a schematic diagram of the composition of a remote start / stop device for a prefabricated substation UPS, as shown in one or more embodiments. Figure 1 As shown, the remote start / stop device for a prefabricated substation UPS according to an embodiment of the present invention specifically includes: a power supply unit 10, an in-station fiber optic switch control unit 12, an electromagnetic pressing execution unit 14, and an external mounting bracket 16. The power supply unit 10 draws power from the DC power supply of the prefabricated substation and outputs a working voltage after voltage regulation. The in-station fiber optic switch control unit 12 is electrically connected to the power supply unit 10 and receives start / stop switch control signals from the main control terminal, and outputs switch control commands according to the control signals. The electromagnetic pressing execution unit 14 is electrically connected to the in-station fiber optic switch control unit 12 and includes an electromagnet. The push rod of the electromagnet is positioned facing the button on the UPS panel, and is used to drive the push rod to extend and press the button after receiving the switch control command. The external mounting bracket 16 is used to fix the electromagnetic pressing execution unit to the outside of the UPS chassis.
[0020] The components of the device of the present invention and their connection relationships are described in detail below.
[0021] The power supply unit 10 draws power from the DC power supply of the prefabricated substation and outputs a working voltage after voltage regulation, providing a stable power supply for the fiber optic switch control unit and electromagnetic pressing execution unit within the substation. Specifically, the power supply unit includes a wide-voltage regulator module. The input terminal of this wide-voltage regulator module is used to connect to the DC power supply panel of the prefabricated substation or the existing DC power supply of the prefabricated substation, and the output terminal is used to provide a stable working voltage to the fiber optic switch control unit and electromagnetic pressing execution unit within the substation. Prefabricated substations typically have a DC power supply panel, which is a device that converts AC power to DC power and provides DC power to control, protection, and signaling equipment within the substation. Under normal operating conditions of the prefabricated substation, the DC power supply panel is powered by the station's AC power through a rectifier module, while simultaneously charging the battery bank. When the station's AC power is interrupted, the DC power supply panel can continue to provide power to the DC load from the battery bank. Furthermore, the output voltage of the DC power supply panel may vary between different prefabricated substations, and the output voltage of the DC power supply panel will also fluctuate within a certain range under battery float charging and equalization charging conditions. The wide-voltage regulator module can maintain stable output voltage over a wide input voltage range, thereby ensuring that the device of the present invention can work reliably in different transformer substation environments without the need to configure different power supply modules for each transformer substation.
[0022] The in-station fiber optic switch control unit 12 includes a single-fiber cascaded switch and a switch output module. The single-fiber cascaded switch is essentially a switch optical transceiver, its working principle based on two fundamental processes: electro-optical conversion and optical-electrical conversion. At the transmitting end, the input switch electrical signal (i.e., the digital signal representing "on" or "off" state) is converted into an optical signal and transmitted through optical fiber; at the receiving end, the received optical signal is converted back into an electrical signal for output. The characteristic of single-fiber cascading is that multiple devices can be connected in series via a single optical fiber, achieving multi-node signal transmission using only one optical fiber. After receiving the switch signal from the master control end via a single optical fiber, the single-fiber cascaded switch controls the on / off state of its internal relays according to the switch signal. When the relay coil is energized, its contact state switches, thereby achieving on / off control of the load circuit. In this invention, the on / off state of the relay directly controls the energization and de-energization of the electromagnet in the subsequent electromagnetic pressing execution unit 14.
[0023] The main control unit is a switch output device located in a remote control center, such as the central control room or maintenance center of a photovoltaic power station. It is used by maintenance personnel to output UPS start-up or shutdown control signals. The main control unit can be an industrial control computer or programmable logic controller (PLC) equipped with switch output boards, or a dedicated switch remote control device. After maintenance personnel select the target transformer and corresponding start / stop command through the main control unit's human-machine interface, the main control unit outputs the corresponding switch signal to the fiber optic network. It should be noted that although the preferred embodiment uses a single-fiber cascaded switch to transmit signals via fiber optic cable, in other embodiments, the in-station fiber optic switch control unit may also include a wireless 4G switch for wirelessly receiving start / stop switch control signals from the main control unit. The wireless 4G switch utilizes the 4G mobile communication network for remote signal transmission and reception, suitable for scenarios lacking fiber optic communication capabilities or where fiber optic cabling is difficult. Regardless of whether fiber optic communication or wireless communication is used, the essence is to transmit the control commands from the master control terminal to the execution terminal in the form of switch signals. Both methods are equivalent substitutions for the technical solution of this invention and are within the protection scope of this invention.
[0024] The electromagnetic pressing actuator 14, electrically connected to the fiber optic switch control unit within the station, includes an electromagnet. The push rod of the electromagnet is positioned facing the button on the UPS panel, and is used to drive the push rod to extend and press the button after receiving the switch control command. Specifically, the electromagnet is a through-type push-pull electromagnet. A through-type push-pull electromagnet is an electromagnetic actuator that converts electrical energy into mechanical linear motion. Its basic structure includes a coil, a movable iron core (i.e., the push rod), and a return spring. Its working principle is as follows: when the coil is energized, the magnetic field generated by the coil magnetizes the movable iron core, and the magnetic attraction drives the push rod to move axially; when the coil is de-energized, the magnetic field disappears, and the push rod returns to its initial position under the action of the return spring. The push rod of the through-type push-pull electromagnet extends through the entire electromagnet body, and both ends can extend, enabling a longer stroke within a limited space and meeting the adaptation requirements of different UPS models with varying button strokes. In this invention, when the through-type push-pull electromagnet is energized, the push rod extends and presses the button on the UPS panel. After power is cut off, the push rod automatically returns to its original position under the action of the reset spring, completing the process from pressing to releasing. The power supply of the electromagnet is determined by the on / off state of the relay in the fiber optic switch control unit within the station: when the relay is closed, the electromagnet is energized and the push rod extends; when the relay is open, the electromagnet is de-energized and the push rod resets. By controlling the duration of the relay closure, the duration of the push rod pressing the button is controlled to adapt to the different response characteristics of different UPS devices to the button pressing duration.
[0025] An external mounting bracket 16 is used to fix the electromagnetic pressing actuator to the outside of the UPS chassis. Specifically, the external mounting bracket is a metal bracket, such as made of galvanized iron or other metal materials with sufficient strength and rigidity, and is fixed to the UPS chassis shell or adjacent installation position by screws, clips, or clamps. Screw fixing is suitable for scenarios where the UPS chassis shell has pre-drilled threaded holes or openable holes, and has the advantages of reliable connection and not easy to loosen; clip fixing is suitable for scenarios where the UPS chassis has a suitable snap-fit structure, which can realize quick installation and disassembly; clamp fixing is suitable for scenarios where the UPS chassis is cylindrical or irregular in shape and it is difficult to fix with screws or clips, and the bracket is clamped and fixed by clamping around the outer perimeter of the chassis.
[0026] The external mounting bracket is also equipped with a position adjustment structure for adjusting the installation position of the electromagnet and the distance between the push rod and the button. Specifically, the position adjustment structure includes an oblong hole, a sliding groove, or an adjustable mounting slot. An oblong hole refers to a hole with a long, elliptical shape, allowing the electromagnet's fixing bolts to slide within its range, thus adjusting the electromagnet's installation position within a certain range. A sliding groove is a guide groove on the bracket, allowing the electromagnet's mounting base to be embedded in and slide along the groove. An adjustable mounting slot consists of multiple mounting holes at different positions on the bracket, allowing users to select according to their actual needs. Through these position adjustment structures, the lateral and longitudinal positions of the electromagnet, as well as the distance between the push rod end and the UPS button surface, can be easily adjusted, ensuring that the push rod's centerline is basically aligned with the UPS button's center and that the push rod's extension stroke reliably triggers the button.
[0027] The complete working process of the device of this invention is as follows: Maintenance personnel select the target transformer substation and the required power-on or power-off operation at the remote main control terminal. The main control terminal outputs the corresponding start / stop switch control signal. This signal is transmitted to the in-station fiber optic switch control unit inside the target transformer substation via a fiber optic network or a wireless 4G network. After receiving the control signal, the in-station fiber optic switch control unit controls the corresponding relay to close according to the signal type. Power-on or power-off corresponds to different switch input channels. After the relay closes, the through-type push-pull electromagnet in the electromagnetic pressing execution unit is energized, and the push rod extends under electromagnetic force, pressing the corresponding power-on or power-off button on the UPS panel. After reaching the preset pressing duration, the in-station fiber optic switch control unit controls the relay to open, the electromagnet to de-energize, and the push rod automatically returns to its original position under the action of the return spring, completing a complete remote pressing operation. The pressing duration can be from 1 second to 5 seconds, and the specific duration can be preset according to the button response characteristics of different UPS devices.
[0028] The beneficial effects of this invention are as follows: Using the embodiments of the present invention, the external buttons on the UPS panel are pressed by physical means. The entire process does not involve any internal control circuits of the UPS, does not cut or modify any internal wiring of the UPS, and does not make any destructive modifications to the UPS chassis. While realizing remote control, the original structure and functional integrity of the UPS equipment are completely preserved. Compared with on-site operation, maintenance personnel can remotely control the start and stop of one or more transformer UPS units through the main control terminal, which greatly improves the efficiency of operation and has strong compatibility and adaptability to existing UPS equipment.
[0029] Method Implementation Examples According to an embodiment of the present invention, a remote start / stop control method for a prefabricated substation UPS is provided. Figure 2A flowchart illustrating a remote start / stop control method for a prefabricated substation UPS, provided for one or more embodiments of this specification, is shown below. Figure 2 As shown, the remote start / stop control method for a prefabricated substation UPS according to an embodiment of the present invention specifically includes: S1. Output UPS start / stop switch control signals through the main control terminal; S2. Receive the control signal through the fiber optic switch control unit in the station, output the switch control command according to the control signal, and send the switch control command to the electromagnetic pressing execution unit; S3. When the electromagnetic pressing execution unit receives the switch control command, it drives the push rod of the electromagnet to extend and press the button on the UPS panel; S4. After pressing, the relay is disconnected, the electromagnet is de-energized, the push rod is reset, and the UPS of the box-type substation is remotely started and stopped.
[0030] The embodiments of the present invention are method embodiments corresponding to the above-described device embodiments. The specific operation of each step can be understood by referring to the description of the device embodiments, and will not be repeated here.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A remote start / stop device for a prefabricated substation UPS, characterized in that, include: The power supply unit is used to draw power from the DC power supply of the prefabricated substation and output the working voltage after voltage regulation. The fiber optic switch control unit in the station is electrically connected to the power supply unit and is used to receive start / stop switch control signals from the main control terminal and output switch control commands according to the control signals. An electromagnetic pressing actuator, electrically connected to the fiber optic switch control unit in the station, includes an electromagnet. The push rod of the electromagnet is positioned toward the button on the UPS panel and is used to drive the push rod to extend and press the button after receiving the switch control command. An external mounting bracket is used to fix the electromagnetic pressing actuator to the outside of the UPS chassis.
2. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The power supply unit includes a wide-voltage regulator module. The input end of the wide-voltage regulator module is used to connect to the DC power supply of the box-type substation or the existing DC power supply of the box-type substation, and the output end is used to provide a stable operating voltage to the fiber optic switch control unit and the electromagnetic pressing execution unit in the station.
3. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The in-station fiber optic switch control unit includes a single-fiber cascaded switch and a switch output module. The single-fiber cascaded switch receives switch signals from the main control terminal through a single optical fiber, and the switch output module controls the on / off state of relays according to the switch signals.
4. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The electromagnet is a through-push-pull type electromagnet, in which the push rod extends when energized and resets when de-energized.
5. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The external mounting bracket is a metal bracket that is fixed to the UPS chassis or an adjacent installation location by screws, clips or clamps.
6. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The external mounting bracket is equipped with a position adjustment structure for adjusting the installation position of the electromagnet and the distance between the push rod and the button.
7. The remote start / stop device for a prefabricated substation UPS according to claim 6, characterized in that, The position adjustment structure includes an elongated hole, a sliding groove, or an adjustable mounting groove, used to adjust the lateral and longitudinal positions of the electromagnet and the distance between it and the button.
8. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The main control terminal is a switch output device used to output UPS start-up or shutdown control signals.
9. The remote start / stop device for a prefabricated substation UPS according to claim 1, characterized in that, The station's fiber optic switch control unit includes a wireless 4G switch, which is used to receive start / stop switch control signals from the main control unit wirelessly.
10. A method for remote start / stop control of a prefabricated substation UPS, used in a prefabricated substation UPS remote start / stop device as described in any one of claims 1-9, characterized in that... include: The main control terminal outputs UPS start / stop switch control signals. The control signal is received by the fiber optic switch control unit in the station, and a switch control command is output according to the control signal and sent to the electromagnetic pressing execution unit. When the electromagnetic pressing actuator receives the switch control command, it drives the push rod of the electromagnet to extend and press the button on the UPS panel; After the pressing is completed, the relay is disconnected, the electromagnet is de-energized, and the push rod is reset, realizing the remote start and stop of the UPS of the box-type substation.